An open source BASIC programming language for DOS, Windows and Linux that supports C pointers and most standard C libraries, including OpenGL. Releases, links to forums, documentation and gallery.
A 32-bit BASIC compiler, with the syntax the most compatible possible with MS-QuickBASIC, that adds new features such as pointers, unsigned data types, inline-assembly. [Open-source, LGPL]
A free 32-bit MS-QuickBASIC's syntax-compatible compiler for Windows, that adds new features such as pointers, unsigned data types, inline-assembly. [Open source, LGPL]